<html>

<head>
    <script src="./vue.js"></script>
</head>

<body>
    <div id="app">
        <div v-bind:style="{backgroundColor:pink,width:width,height:height}"></div>
        <div v-bind:style="myDiv"></div>
    </div>
</body>
<script>
    var vue = new Vue({
        el: "#app",
        data: {
            myDiv: {
                backgroundColor: 'red',
                width: '100px',
                height: '100px'
            },
            pink: 'pink',
            width: '100%',
            height: '200px'
        }
    })
</script>

</html>